"That requires you to be present, persistent and consistent," Schmitt said. "You can't just post once a day in social media. People are on and off, back and forth, and you've got to be there when they're there."

"I think this is a missed opportunity by both sides," she added.

On Wednesday, Atlantic Station is partnering with Untie Atlanta for an online Tweetup.

Saba Long, press secretary at Citizens for Transportation Mobility, will be on Twitter to answer questions about the referendum from 11 a.m. to 12 p.m. and again from 7 p.m. to 8 p.m.

Tweeters can send questions to Caleb J. Spivak, Atlantic Station's social media and community manager, who will be moderating the discussion from the mixed-use community's Twitter handle (@AtlanticStation).

Answers will come from Saba Long on the Untie Atlanta Twitter handle (@UntieAtlanta). Participants can follow the conversation by using hashtag #UntieATL.

Net Impact Atlanta (@NetImpactATL) is also hosting a Tweetup at 6:30 p.m. on Wednesday.